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authorDan McGee <dan@archlinux.org>2007-06-10 23:16:09 -0400
committerDan McGee <dan@archlinux.org>2007-06-10 23:17:19 -0400
commitdde7b6f87a0d70babbb6c8951b8c369a4aa6601d (patch)
treed814fae1e0711e1febe7a5d15a85f7b3d0b041cf /lib
parent544bcbe6641bb94a429a9c149893bc0b07fd2619 (diff)
Attempt to clean up _alpm_sync_prepare
This function is an absolute disaster, so we'll take it one step at a time here. This was a quick once-over of the whole thing, trying to straighten out some of the spaghetti code and fix some mistakes that others found. We are now down to two failing pactests again: sync300 and upgrade051. Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/libalpm/sync.c120
1 files changed, 56 insertions, 64 deletions
diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c
index f7f24622..87da9695 100644
--- a/lib/libalpm/sync.c
+++ b/lib/libalpm/sync.c
@@ -380,10 +380,9 @@ static int syncpkg_cmp(const void *s1, const void *s2)
int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync, alpm_list_t **data)
{
alpm_list_t *deps = NULL;
- alpm_list_t *list = NULL; /* list allowing checkdeps usage with data from trans->packages */
- alpm_list_t *trail = NULL; /* breadcrumb list to avoid running into circles */
- alpm_list_t *asked = NULL;
- alpm_list_t *i, *j, *k, *l;
+ alpm_list_t *list = NULL; /* allow checkdeps usage with trans->packages */
+ alpm_list_t *trail = NULL; /* breadcrumb list to avoid running in circles */
+ alpm_list_t *i, *j;
int ret = 0;
ALPM_LOG_FUNC;
@@ -406,7 +405,8 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
_alpm_log(PM_LOG_DEBUG, _("resolving target's dependencies"));
for(i = trans->packages; i; i = i->next) {
pmpkg_t *spkg = ((pmsyncpkg_t *)i->data)->pkg;
- if(_alpm_resolvedeps(db_local, dbs_sync, spkg, list, trail, trans, data) == -1) {
+ if(_alpm_resolvedeps(db_local, dbs_sync, spkg, list,
+ trail, trans, data) == -1) {
/* pm_errno is set by resolvedeps */
ret = -1;
goto cleanup;
@@ -430,13 +430,11 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
if((trans->flags & PM_TRANS_FLAG_DEPENDSONLY)) {
void *vpkg;
pmsyncpkg_t *sync;
- const char *pkgname;
- pkgname = alpm_pkg_get_name(spkg);
_alpm_log(PM_LOG_DEBUG, "removing package %s-%s from the transaction targets",
- pkgname, alpm_pkg_get_version(spkg));
+ alpm_pkg_get_name(spkg), alpm_pkg_get_version(spkg));
- sync = _alpm_sync_find(trans->packages, pkgname);
+ sync = _alpm_sync_find(trans->packages, alpm_pkg_get_name(spkg));
trans->packages = alpm_list_remove(trans->packages, sync, syncpkg_cmp, &vpkg);
_alpm_sync_free(vpkg);
}
@@ -444,23 +442,24 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
}
/* re-order w.r.t. dependencies */
- k = l = NULL;
- for(i=trans->packages; i; i=i->next) {
- pmsyncpkg_t *s = (pmsyncpkg_t*)i->data;
- k = alpm_list_add(k, s->pkg);
+ alpm_list_t *sortlist = NULL;
+ alpm_list_t *newpkgs = NULL;
+ for(i = trans->packages; i; i = i->next) {
+ pmsyncpkg_t *s = i->data;
+ sortlist = alpm_list_add(sortlist, s->pkg);
}
- k = _alpm_sortbydeps(k, PM_TRANS_TYPE_ADD);
- for(i=k; i; i=i->next) {
- for(j=trans->packages; j; j=j->next) {
- pmsyncpkg_t *s = (pmsyncpkg_t*)j->data;
- if(s->pkg==i->data) {
- l = alpm_list_add(l, s);
+ sortlist = _alpm_sortbydeps(sortlist, PM_TRANS_TYPE_ADD);
+ for(i = sortlist; i; i = i->next) {
+ for(j = trans->packages; j; j = j->next) {
+ pmsyncpkg_t *s = j->data;
+ if(s->pkg == i->data) {
+ newpkgs = alpm_list_add(newpkgs, s);
}
}
}
- alpm_list_free(k);
+ alpm_list_free(sortlist);
alpm_list_free(trans->packages);
- trans->packages = l;
+ trans->packages = newpkgs;
EVENT(trans, PM_TRANS_EVT_RESOLVEDEPS_DONE, NULL, NULL);
@@ -488,30 +487,26 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
deps = _alpm_checkconflicts(db_local, list);
if(deps) {
int errorout = 0;
+ alpm_list_t *asked = NULL;
for(i = deps; i && !errorout; i = i->next) {
pmdepmissing_t *miss = i->data;
- int found = 0;
pmsyncpkg_t *sync;
- pmpkg_t *local;
+ pmpkg_t *found = NULL;
_alpm_log(PM_LOG_DEBUG, _("package '%s' conflicts with '%s'"),
miss->target, miss->depend.name);
-
- /* check if the conflicting package is one that's about to be removed/replaced.
- * if so, then just ignore it
- */
+ /* check if the conflicting package is about to be removed/replaced.
+ * if so, then just ignore it. */
for(j = trans->packages; j && !found; j = j->next) {
sync = j->data;
if(sync->type == PM_SYNC_TYPE_REPLACE) {
- if(_alpm_pkg_find(miss->depend.name, sync->data)) {
- found = 1;
- }
+ found = _alpm_pkg_find(miss->depend.name, sync->data);
}
}
if(found) {
_alpm_log(PM_LOG_DEBUG, _("'%s' is already elected for removal -- skipping"),
- miss->depend.name);
+ alpm_pkg_get_name(found));
continue;
}
@@ -521,18 +516,15 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
miss->target);
continue;
}
- local = _alpm_db_get_pkgfromcache(db_local, miss->depend.name);
- /* check if this package also "provides" the package it's conflicting with
- */
- if(alpm_list_find_str(alpm_pkg_get_provides(sync->pkg), miss->depend.name)) {
- /* so just treat it like a "replaces" item so the REQUIREDBY
- * fields are inherited properly.
- */
- _alpm_log(PM_LOG_DEBUG, _("package '%s' provides its own conflict"), miss->target);
- if(local) {
- /* nothing to do for now: it will be handled later
- * (not the same behavior as in pacman 2.x) */
- } else {
+ pmpkg_t *local = _alpm_db_get_pkgfromcache(db_local, miss->depend.name);
+ /* check if this package provides the package it's conflicting with */
+ if(alpm_list_find_str(alpm_pkg_get_provides(sync->pkg),
+ miss->depend.name)) {
+ /* treat like a replaces item so requiredby fields are
+ * inherited properly. */
+ _alpm_log(PM_LOG_DEBUG, _("package '%s' provides its own conflict"),
+ miss->target);
+ if(!local) {
char *rmpkg = NULL;
int target, depend;
/* hmmm, depend.name isn't installed, so it must be conflicting
@@ -546,8 +538,8 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
* opting for xfree86 instead.
*/
- /* figure out which one was requested in targets. If they both were,
- * then it's still an unresolvable conflict. */
+ /* figure out which one was requested in targets. If they both
+ * were, then it's still an unresolvable conflict. */
target = alpm_list_find_str(trans->targets, miss->target);
depend = alpm_list_find_str(trans->targets, miss->depend.name);
if(depend && !target) {
@@ -568,31 +560,26 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
if(rmpkg) {
pmsyncpkg_t *rsync = _alpm_sync_find(trans->packages, rmpkg);
void *vpkg;
- _alpm_log(PM_LOG_DEBUG, _("removing '%s' from target list"), rsync->pkg->name);
- trans->packages = alpm_list_remove(trans->packages, rsync, syncpkg_cmp, &vpkg);
+ _alpm_log(PM_LOG_DEBUG, _("removing '%s' from target list"),
+ rsync->pkg->name);
+ trans->packages = alpm_list_remove(trans->packages, rsync,
+ syncpkg_cmp, &vpkg);
_alpm_sync_free(vpkg);
continue;
}
}
}
- /* It's a conflict -- see if they want to remove it
- */
- _alpm_log(PM_LOG_DEBUG, _("resolving package '%s' conflict"), miss->target);
+ /* It's a conflict -- see if they want to remove it */
+ _alpm_log(PM_LOG_DEBUG, _("resolving package '%s' conflict"),
+ miss->target);
if(local) {
int doremove = 0;
if(!alpm_list_find_str(asked, miss->depend.name)) {
- QUESTION(trans, PM_TRANS_CONV_CONFLICT_PKG, miss->target, miss->depend.name, NULL, &doremove);
+ QUESTION(trans, PM_TRANS_CONV_CONFLICT_PKG, miss->target,
+ miss->depend.name, NULL, &doremove);
asked = alpm_list_add(asked, strdup(miss->depend.name));
if(doremove) {
- pmsyncpkg_t *rsync = _alpm_sync_find(trans->packages, miss->depend.name);
- pmpkg_t *q = _alpm_pkg_new(miss->depend.name, NULL);
- if(q == NULL) {
- if(data) {
- FREELIST(*data);
- }
- ret = -1;
- goto cleanup;
- }
+ pmpkg_t *q = _alpm_pkg_dup(local);
q->requiredby = alpm_list_strdup(alpm_pkg_get_requiredby(local));
if(sync->type != PM_SYNC_TYPE_REPLACE) {
/* switch this sync type to REPLACE */
@@ -601,13 +588,19 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
sync->data = NULL;
}
/* append to the replaces list */
- _alpm_log(PM_LOG_DEBUG, _("electing '%s' for removal"), miss->depend.name);
+ _alpm_log(PM_LOG_DEBUG, _("electing '%s' for removal"),
+ miss->depend.name);
sync->data = alpm_list_add(sync->data, q);
+ /* see if the package is in the current target list */
+ pmsyncpkg_t *rsync = _alpm_sync_find(trans->packages,
+ miss->depend.name);
if(rsync) {
/* remove it from the target list */
void *vpkg;
- _alpm_log(PM_LOG_DEBUG, _("removing '%s' from target list"), miss->depend.name);
- trans->packages = alpm_list_remove(trans->packages, rsync, syncpkg_cmp, &vpkg);
+ _alpm_log(PM_LOG_DEBUG, _("removing '%s' from target list"),
+ miss->depend.name);
+ trans->packages = alpm_list_remove(trans->packages, rsync,
+ syncpkg_cmp, &vpkg);
_alpm_sync_free(vpkg);
}
} else {
@@ -719,7 +712,6 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
cleanup:
alpm_list_free(list);
alpm_list_free(trail);
- FREELIST(asked);
return(ret);
}